Understanding Garage Door Springs: Torsion vs. Extension

Garage door springs are the unsung heroes of your garage door system. They're responsible for the heavy lifting, quite literally, making it possible for you to easily open and close your garage door. But not all springs are created equal. In this post, we'll dive into the two main types of garage door springs: torsion and extension.

What Are Garage Door Springs?

Before we compare the two types, let's understand what garage door springs do. These springs store mechanical energy when the door is closed, which is then used to help lift the door when you open it. This mechanism counterbalances the door's weight, making it manageable for both manual operation and motorized openers.

Torsion Springs

How They Work

Torsion springs are mounted horizontally above the garage door opening. When the door closes, the springs wind up, storing energy. As the door is opened, the springs unwind, helping to lift the door.

Advantages

1. Longer lifespan: Typically last 15,000 to 20,000 cycles.

2. Smoother operation: Provide more controlled movement with less jerking.

3. Safer: Less likely to cause injury if they break due to their mounting position.

4. Better balance: Distribute the door's weight evenly, reducing wear on other parts.

Disadvantages

1. Higher initial cost: More expensive to install than extension springs.

2. Professional installation required: Not suitable for DIY installation due to high tension.

Extension Springs

How They Work

Extension springs are located above the horizontal tracks on both sides of the door. They stretch when the door is closed and contract when the door is opened, providing the lifting force.

Advantages

1. Lower cost: Generally less expensive than torsion springs.

2. Easier installation: Can be a DIY project for experienced homeowners.

3. Suitable for low-headroom garages: Don't require as much overhead space as torsion springs.

Disadvantages

1. Shorter lifespan: Typically last 10,000 to 15,000 cycles.

2. Less safe: Can cause more damage or injury if they break while under tension.

3. More wear on door components: The stretching action can cause more stress on other parts of the system.

Which Spring is Right for Your Garage Door?

The choice between torsion and extension springs often depends on several factors:

1. Door weight and size: Heavier doors usually benefit from torsion springs.

2. Budget: If initial cost is a concern, extension springs might be preferable.

3. Available space: Low-headroom garages may require extension springs.

4. Safety concerns: Torsion springs are generally considered safer.

5. Frequency of use: For high-use doors, the longer lifespan of torsion springs may be worth the investment.

Maintenance and Safety

Regardless of the type of spring, regular maintenance is crucial. This includes:

• Visual inspections for wear or damage

• Lubrication of moving parts

• Professional adjustments when necessary

Important: Spring replacement or repair should always be done by professionals. The high tension in these springs can be extremely dangerous if mishandled.

Conclusion

Understanding the differences between torsion and extension springs can help you make informed decisions about your garage door system. While both types have their place, torsion springs are generally considered superior in terms of safety, lifespan, and performance. However, the best choice for your garage will depend on your specific needs and circumstances.

Remember, whether you're installing a new garage door or maintaining an existing one, consulting with a professional garage door service is always the safest and most reliable option.